Benzyl chloride. Benzyl chloride, or Î±-chlorotoluene, is an organic compound with the formula C6H5CH2Cl. This colourless liquid is a reactive organochlorine compound that is a widely used chemical building block.
Two slits are illuminated with red light (Î» = 650 nm). The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central.
Monitor distance from the eye. The best distance from which to read a computer screen is generally greater than reading distances for papers and books. Typical distances for reading from a paper or book is from 15 to 25. Computer screens should be further away, sometimes 30 or more. Maximum viewing distance: First of all, there is no maximum viewing distance. As long as you can comfortably discern the information on the screen it's not too far away.